Display apparatus



March 8, 1932. J. WALLACE DISPLAY APPARATUS 2 Sheets-Sheet Filed June 24, 1950 INVENTOR. @JfP/l 144111465 ATTORE March 8, 1932. I J WALLACE DISPLAY APPARATUS Filed June 24, 1950 2Sheets-Sheet 2 A AT T ORNEY a Wk 7 [wk h o.

Pnt ente d' Mar. I 8,' 1932 sures emen? aostm WALLA E, or meme new @111;

D L Y A ABAI US' Applicetion filed June 24,

This invention relates to display @PPflr ratus and particulerlyto'apparatus of this class for displaying the use of fountain pens nd-similar articles, and Whlflh may b ls/8K1 for other purposes; and the object of the in- Vention is to provide an apparatus of the class specified employing e rotetelale table upon which a, Sheet of paper or otherworkpiece is adapted to be pleced,v means being provided to secure a workpiece in position On said table; a further object being to provide means forsupporting a tool such for example" as a pen, over said table-and for actuating said supporting means to move the tool at tool operatingmeans which will guide the 2 tool intermittently over :the WOIkpiegg from ,v the centrzrlportion to the periphery thereof, means being provided to control th m ve ment ofthe tool toward rand-from the Work-l piece on said table; esti ll further object b 30' ing to provide means for adj-ustingthe posi,

tion the tool in its sup-port during its movement relatively tothe work piece; and,

I With-these and other objects in iew, the in;-

vention consists in enepparetus of the class 1 and 'for the purpose specified, which is sites plein construction, efficient inuSe and which is constructed- ,as hereinefter descri-bed and claimed. f I I The invention isfully cleselosed in the 1 lowing specification, of which the green npanying drawings for-m a part, in which the s pta-rate parts of my mproveme t r d s igneted by suitable refe'ifenee characters in each of the yie-ws, and in Whieh Fig. 1 is a plan View of anepperatus made a d ng to y i vention endil u ra'ting one method its usef Fig- ;2. is e pertiel-section onthe ine- +2 ofFji'grlr through a series or" predetermin lpeths Withmarkings or impressions on the workpiece Fi -3 is an enlarged, deteflowiewiofapert.

1930. Serial m. 4es,4qs;

et th struetu 'e shewnin Fig: with part 9f: he eonstructigo brokenewey- F g: 6% enlarg d, d tai Vie 9i e P133??- of the construct n shown i Eiez Fig-t is a n View of; t e, trueture ii show Fist and, 7 I i I Fig- 6 is, plan Vi w 97% tart o a. we e pieeeillust atingene w lthga of meviegthe tool w th r spect he eto-o I t t Fe -t e pu pose t illustrates one me hed 69 ot canryinemyinveni io into efii tl have shown n apparatus p e id el Wi h. or suppe -tine whet-i known as a. t mmta e- I 7 P but it ill e un l rs eed at this' ime, tha .anysuite lfi 90 my be employed i conneet o it th app ra us; I

I F g -'1 a d 2, I hav s wn at 10,- ehex:

o e pr fe a ly made frem hi hest we;

d up on hi ism u-n ed re eveble c er he iting a t l i e y large opening 1 79.

o med .eent alty tbersot fiuppei t e the o 1 e ieeest on co ner nerti n them -7i a switch 3 ceutrel ing th el ettri eireuit enths el c is me er 1 surpoeted in. he se 10, th c m twi s 1 from a s urce 0 see Ply being place .in'j i rcu it jhmesh usual leetliic plus 6 adaeted m n th cure W pe g socket v17 supportedinen side ell f the ca e 10- .Cenneeted with he socket are w res-l 19, th W re 1e leading-t9 the 89: witeh and-the Wire l9-tethe met r 41 311d n the W r 20 fr m th swit lee s it? said" met t c mp etethe Qimu tr t ppen d the ha t of he meter is e o m gearZl W sk meslw wit e letite- $5 y la ge g a 22see dim shaft suppertr' d in th -easeseid sha is r niqn 2.

wh ch meshes w th a slightly lar sea se red e haf 2. t1 e lette sha projectepwe d y through th we? pl te c d h ret aboveend in so d releti n. o th over 11, i e kerul we, theftee I ndo which a ies tripp n 2 Molmteden the she t tt lower end ther e a w rm 2 mes ng with 11%??3139 v ee to on end; ei a shet al1g d I horizontal y ef them se l0 and supper ed I bearings 32. The other end of the shaft 31 as w rmfiiwhichtm sheswi he gear fi n thel w rend por ion a .ve tice shefii35 1 arranged centrally of the case 10 in a suitable bearing 36. A collar 37 is arranged on said shaft, approximately centrally thereof, to

4 form a backing for the rotatable table 38 of the apparatus, the central hub portion 39 of the table resting upon said collar.

Said table is secured in position by a removable cap 40 which also serves to hold a sheet of paper or other workpiece 41 in engagement with the top of the table. The cap 40 has a milled nut 42 s'wivelled thereon and in screw threaded engagement with the upper end of the shaft 35. In clamping the table in position, the peripheral edge thereof is arranged above and in spaced relation to the cover 11 of the case, as clearly seen in Fig. 2, to provide free rotation of the table over said case. The table is reinforced by a plurality of radially arranged ribs 43 disposed on the under face thereof. It will also be seen that an annular workpiece retaining ring 44, which is L-shaped in cross sectional form, is supported on the outer and upper surfaces of the table, and under which the peripheral edge of the workpiece or sheet 41 is placed. Said sheet of paper is in the form of, a disk having a central aperture, sufficiently large,

to clear the 'shaft35, but of less diameter than the diameter of the cap 40.

Pivotally supported on the crank arm 27, inwardly of the trip pin 28, is a U-shaped block 45 shown in Figs. 1, 4 and 5 of the drawings,the side walls of said block having vertically arranged apertures 46 to receive a key pin 47 mounted in one end por tion of a tool operating bar 48. The bar 48 is divided into two parts, namely a tubular part 48a and a solid rod part 48?), which parts are joined together by a tool supporting block 49 having an angularly disposed portion 49a in which the tool 50 is adapted to be supported, said tool being in the form of a fountain pen in the construction shown.

The lower end portion ofthe pen barrel is threaded as seen at 51 to engage a sleeve 52 arranged in the block, said sleeve having a threaded peripheral portion with which a beveled pinion 54 on the end of a shaft 55 is adapted to operate, said shaft being an ranged in and extending longitudinally through the tubular part 48a and is provided at its outer end with a ratchet 56 in connection with which the trip pin 28 is adapted to operate. The'part 48a of the bar 48 has an enlargement 48c arranged in the channel of the block 45, in connection with which the pin 47 is mounted. It will thus be seen that this end of the bar 48 may be readily raised in detaching the same from the block 45 and 57 which is rotatably mounted upon the.

the other end 486 may also be raised out of engagement with another U-shaped block cover 11. v

Y Arranged within the block 57 is a long, flat spring 58 secured to the block as seen at 59; and rotatably mounted on one side of the block is a dial 60 which carries an eccentric pin 61 arranged below the spring 58 and adapted to raise and lower said spring in said block to gage the height of the end 485 of the bar 48 to control and regulate the engagement of the end of the tool with respect to the workpiece or sheet 41, such for example as the pen point 50a. The spring serves further purpose in taking up the shock in the sudden lowering of the bar in the operation of the apparatus, especially in the passage of a cam member 62 on the end of the part 48?) of the bar over said spring in the several cycles of operation of the apparatus as later described. I

' The operation of my improved apparatus will be readily understood from the foregoing description when taken in connection with the accompanying drawings, and'the following statement. The workpiece or sheet 41 is first mounted upon the table and securely clampedin position, which operation also clamps the table into firm engagement with the shaft 35, after which the bar 48, previously removed, is now placed in position with the fountain pen set in the holder 49;

In starting the operation of the machine, the pen is first positioned with the cam 62 resting upon the spring 58 which supports the pen above the workpiece when in its innermost position with reference to the central part of the workpiece. The motor 14 is now put in operation through the action of the switch 13, and the rotation of the shaft 26 7 through the gearing disclosed, will cause the crank arm 27 to be rotated in such manner as to advance the bar 48 in the direction of the block 57, and the cam 62 w ll be moved out of engagement with the spring. When so disengaged, the point 50a of the pen will be brought into engagement with the workpiece as indicated at the points: in the diagrammatic illustration of the course or path of travel of the pen with reference to the workpiece, as shown in 6, the point an indicating the first engagement with the workpiece or sheet 41. As the operation of the machine continues, the pen point is passed through a curved path, represented by the line x2 which is marked on the sheet 41 by the ink within the pen, until the pen point reaches the outer peripheral edge portion of the workpiece where the pen makes a relatively small curve indicated at 133 and travels backwardly through another curved path indicated at $4, terminating at the point w5,-at which point, the pen is again raised. by the cam 62 and moved out of engagement with the sheet 41.

In returning to the sheet for the second successive stroke, the pen will re-engage the same at the point m6, the latter complete stroke terminating at the point m7, and so on, until the entire sheet has been covered through a complete revolution of the table 38., during which revolutiom'thepen or tool' has traveled through a multiplicity; of back and forth intermittent .movements through paths which are governed by the structural arrangement of the apparatus employed, one

form of which is disclosedin Fi 6 otthe drawings. .5

It will thus beapparent that the ratio of; gearing vto the rotatabletable (3.8 will befsuoh as tot-urn said table around slowly, and this turning operation in the construction sh owni i's-eonstant, but the ratio .oigearing and the specific manner of rotating thetable may be varied in the productionot different designs or paths of travel of thetool. In employingv a tool of the class described, andiespeciallyla fountain pen having a pinsshaped writing point, it is also preferablej to rotate the pen intermittently so as to prevent wear of the point in such manner as to form a sharp edge.

It will thus be seen that, as the crank arm 27 completes each cycle of revolution and thetrip pin 28 passes beneath the ratchet 56, said ratchetwill be engaged and rotated a trac tion of a revolution to correspondingly rotate sired to refill the pen. I In like manner, a new workpiece orsheet ll may be replaced for an old sheet by simplyremoving the ring 4:4 and the cap 40.

and automatically actuated means. for inter- It will be understood that while Ihave illu-str-ated one method of carrying my inven tion into effect and have show-n and described a certain type of tool andworkpiece, and

have further illustrated a specific manner of p travel and operation ofthe tool-and the work-' a piece supporting table, that. my invention I is not limited to these structural arrangements, or manners of use of the invention, andvariousichanges thereinand modifications thereof, may be made within thescope of' theappended claims without departing from the spirit of invention or sacrificing its advantages-. f V

Having fully described my invention, what I claim as newand desire to secure by Letters Patent, is

1. A machine of the class described come prising a workpiecesupporting member, a tool supporting part dlsposedrover'saldmember, means for moving said'part relatively to said member and for controlling the path otinovement'of a tool supported in said part with respect to said member, means for moving said member relatively "tothe path of movementof the. tool supported in said part,

mittentlymovingc said part toward and from said member in each cycle of operation of the part with respect thereto.

2; A machine of the class described prising a workpiece supporting member, a tool supporting part disposed over said meme 'b'er',means for moving said part relatively to said member and for controlling the path of-movement of a tool supported in said part with respect to, said member, means for moving said member relatively to the path of movementof the tool supported in said part,

automatically actuated means for intermittently moving said part toward andv from said member in each cycle of operation of the part with respect thereto, and adjustable means cooperating with said last named means for gaging the spacing of said part with respect to said member.

3. A machine of the class described comprising a workpiece supporting member, a tool supporting part disposed oversaid memr ber, means for movin said part relatively to said member and for controlling the path of movement of a tool supported in said part with respect to said member, means for IIIOVF- ing said member relatively to the path of movement of the tool supported in saidpart,

said part having tool supporting means with which a tool may be detachably coupled, and means for intermittently rotating said tool supporting part.

hAn apparatus of the class described,v

comprising a rotatable workpiece sup-porting table, means for rotat ng said table, a bar adapted to be arranged over said table, a

rotatable block supporting one end of said] supported therein may engage and move over a workpiece supported on said table, means for raising said bar to move the tool supported therein out of: engagement with the workpiece, during each cycle ofrevolutiou of said operating crank, and means for intermittently rotating said tool" supporting member. a

5., An; apparatus of the class described comprising a tool supporting bar, means for supporting a tool in connection therewith, two rotatable yoke-shaped blocks arranged in spaced relation to each other, one of said blocks being rotated on a fixed axis and through which the bar is slidably mounted, a crank arm in connection with which the other block is pivotally mounted and by come locks and crank arm being disposed verti c-ally with respect to the, longitudinal planer of said tool supporting bar, means for actuating said crank arm to move a tool arranged in said supporting means through predetermined paths during each cycle of revolution of said crank, and means on said bar 00- operating with the first named block for intermittently raising said bar and the tool supported therein.

6. In an apparatus of the class described,- 'means for supporting a work sheet, means for supporting and operating a fountain pen intermittently back and forth with respect to the work sheet through predeterminedpaths to trace on the work sheet, by the point of said pen, thepath of movement traversed thereby, means for moving the work sheet during the movement of the pen with respect thereto, means for intermittently moving the pen out of engagement with the work sheet, and means for rotating said pen. I 7. An apparatus of the class describe comprising a rotatable workpiece supporting table, means for rotating said table, a rot-atable block supported outwardly of said table, a crank arm arranged in opposed relation to said block, and the axis of which is disposed outwardly of said table, said block and arm each having an upwardly directed channel portion arranged vertically wit-h respect to the plane of rotation of said table, a bar adapted to be arranged over the table and seating in the channel portion of said block and of said arm, means for keying one end of the bar to the channel portion of said arm, the other end of the bar being movable longitudinally of the channel in said block, said bar being readily attachable and detachable with respect to the arm and block b vertical movement toward and from the channels thereof, and a tool supporting memberon said bar whereby a tool supported therein may engage and move over a workpiece supported on said table.

8. An apparatus of the class described comprising a rotatable workpiece supporting table, means for rotating said table, a rotatable block supported outwardly of said table,

a crank arm arranged in opposed relation to said block and the axis of which is disposed outwardly of said table, said block and arm each having an upwardly directed channel portion arranged vertically with respect to the plane of rotation of said table, a bar adapted to be arranged over the table and gage and move over a workpiece supported on said table, and means on said bar cooperating with said block for automatically raising said bar to move the tool supported therein out of engagement with the workpiece during each cycle of revolution of said crank arm. I

9. An apparatus of the class described comprising a rotatable workpiece supporting table, means for rotating said table, a rotatable block supported outwardly of said table, a crank arm arranged in opposed relation to said block and'the axis of which is disposed outwardlyof said table, said block and arm each having an upwardly directed channel portion arranged vertically with respect to the plane of rotation of said table, a bar adapted to be arranged over the table and seating in the channel portion of said block and of said arm, means for keying one end of the bar to the channel portion of said arm, the other end of the bar being movable longitudinally of the channel in said block, said bar being readily attachable and detachable with respect to the arm and block by vertical movement toward and from the channels thereof, a tool supporting member on said bar whereby a tool supported therein may engage and move over a workpiece supported on said table, means'on said bar cooperating with said block for automatically raising said bar to move the tool supported therein out of engagement with the workpiece during each cycle of revolution of said crank arm, and means on said block for adjusting the position of the bar with respect to the workpiece.

10. An apparatus of the class described comprising a tool supporting bar, means for supporting a tool in connection therewith, two rotatable blocks arranged in spaced relation to each other, one of said blocks bein rotated on a fixed axis, a crank arm arrange in spaced relation to the first named block, the other block being rotatably supported in the free end portion of the crank arm, each of said blocks having a channel opening outwardly through the upper end thereof and arranged at right angles to the longitudinal plane of said bar in which the end portions of said bar are adapted to be supported, said bar being detachable with respect to said blocks, means for keying one end portion of the bar to the block on said crank, the other end'portion of the bar slidably engaging the first named block,means for actuating said crank arm to move said bar and a tool arranged in said supporting means through predetermined paths during each cycle of revolution of said crank, and means for moving said bar vertically for a predetermined interval during each cycle.

11. An apparatus of the class described comprising a casing, a disk supported to rotate over the top of said casing, a tool supporting bar arranged over said disk, means for supporting a tool in connection therewith,

two rotatable blocks arranged inspaced rela-v tion to each other, one of said blocksbeing rotated on a fixed axis, a crank arm arranged in spaced relation to the first named block, the other block being rotatably supported in the free end portion'of the crank arm, each of said blocks having a channel opening outwardly through the upper end thereof and arranged at right angles to the longitudinal plane ofsaid bar in which the end portions of said bar are adapted to be supported, said bar being detachable with respect to said blocks, means for keying one end portion of the bar to the block onsaid crank, the other end portion of the bar slidably engaging the first named block, means for actuating said crank arm to move said bar and a tool arranged in said supporting means through predetermined paths during each cycle. of revolution of said crank, means for moving said bar vertically for a predetermined interval during each cycle, an electric motor supported in the casing, and a gear chain including worm gears for placing said disk and crankarm in operative engagement with said motor in order to rotate said disk at a very low rate of speed as compared wlth the rota-,

tion of said crank. i

- 12. An apparatus of the class described comprising a casing, a disk supported to rotate over the top of said casing,"a tool supporting bar arranged over said disk, means for supporting a tool in connection therewith, two rotatable blocks arranged in spaced relation to each other, one'of said blocks being rotated on a fixed axis, a crank arm arranged in spaced relation to thefirst 'named' block, the other blockbeingrotatahly supported in the free end portion of the crank arm, each of said blocks having a channel opening outwardly through the upper end thereof and arranged at right anglesto the longitudinal plane of said bar in which the .end portions of saidbar are adapted to be supported, said bar being detachable with respect to said blocks, means for keying one end portion of the bar to the blockon said crank, the other end portion of the bar slidably engaging the first named block, means for actuating said crank arm to move said bar and a tool arranged in said supportingmeans throu h predetermined paths during each cycle of revolution of said crank, means for moving saidbar vertlcally for apredetermined interval during each cycle, an elec-' tric motor supported in the casing and a gear chain including worm gears for placing said disk and crank arm in operative engagement with said motor in order to rotate said disk at a-very low rate of speed as compared with the rotation of said crank, and manually adjustable means for regulating the position of a tool supported in the bar with respect to a workpiece arranged on said disk.

13. An apparatus of the class described apparatus;

supporting and" operating bar arranged) can:

tra'lly and horizontally over the table of'thecrank' arinrot-stably supported i outward said fiabl- 3,1li8fi1S for actuating sai' arm and table, a block rotatabl'y supportoutwardly of the-table and in opposed radial alinement with respect to the axis of said crank arm, said block slidably supporting one end po rtion of saidbar, anether hloek pivotally supportednponsaid crank arm and't'o whiclfthe otherendf'portion of'said'ba'r is keyed whereby the'fouiitairi pen'onisa'id bar may he moved through predetermined paths overthe work sheet on said table through the manually adjust-able means on said first named block for controlling the relative positron of the fountain pen pointwith respects to the work sheet. i Y

14. An apparatus of the; class describec 'comprising a work sheet supporting table, means for supporting a disk-like sheet upon the upper face of said table, a fountain pen supporting and operatingbar arranged ce'ntrally and horizontally over the table of the apparatus, a crank arm rotatably supported outwardly of said table, means for actuating said arm and table, a block rotatably supported outwardly of the table and in opposed radicoinprising a work, sheet supporting table, means for supporting adisk-like sheet upon the upperfaceof said table, a fountain pen operation of said crank arm andtable, and f al alinement with respect to the axis :of said I crank arm, said block'slidably supporting one end portion of said bar, another block pivotally supported upon said crank arm and to which the other end portion of said bar is keyed whereby the fountain pen, on said bar 7 may be moved through predetermined paths over the work, sheet on said table through the operation of said crank arm and table, manually adjustable means on said first named block for controlling the relative position of I the fountain pen point with respect to the work sheet, and means for automatically moving the fountain pen out of engagement with the work sheet during each cycle ofrevolution of said crank arm.

15. An apparatus of the class described comprising a work sheet supporting table, means for supporting a disk-like sheet upon the upper face of said table, a fountain pen sun orting and operatin bar arran ed cenmaybe moved through predetermined paths over the work sheet on said table through the operation of said crank arm and table, manuall adjustable means onsaid first named blocli for controlling the relative position of the fountain pen point with respect to the work sheet, means for automatically moving the fountain pen out of engagement with the I work sheet during each cycle of revolution of said crank arm, and means for automatically rotating said fountain pen in said bar during each cycle of revolution of the crank arm. I

In testimony that I claim the foregoing as my invention I have signed my name this 20th day of June, 1930.

JOSEPH WALLACE. 

